How Long Can CCTV Cameras Keep You Secure?

How Long Can CCTV Cameras Keep You Secure?

January 21, 2019 Off By Melinda Hudson

One of the most important components of residential or commercial security is the capability to monitor the premises. This is why many homes and commercial establishments utilise CCTV cameras to keep track of activities within and outside the buildings. CCTV (closed-circuit television) cameras are part of a monitoring system for surveillance and security. These cameras are placed at strategic locations to allow people to view activities in real time and/or record footage to be reviewed later.

How Long Do CCTV Cameras Keep Footage?

CCTV cameras

Cameras are placed at strategic locations to allow people to view activities in real time and/or record footage to be reviewed later.

One of the most common questions regarding CCTV cameras is the length of time they are capable of recording and keeping video footage. Most surveillance systems are set up to record footage and store it into a connected or a remote device. Recorded videos are stored for a defined duration, which, considering the capabilities of newer models of surveillance systems these days, can last for several days, several weeks, or several months. Once the full capacity is reached, most systems will automatically overwrite the footage that has already been recorded. Most camera systems record to a hard drive stored in the property or on a remote server.

Factors That Affect the Length of Recording Time

Storage Capacity

Storage capacity determines how long CCTV cameras can store recorded footage before it is overwritten or deleted. The capacity will generally depend on the model and type of surveillance system. Systems that have limited capacity usually store footage on DVRs and NVRs which record data on disks, memory cards, flash drives, and other types of mass storage devices. Network-based systems such as IP surveillance types, on the other hand, are capable of recording data onto network servers. These servers have large capacities, allowing for significantly longer storage time.

Recording Quality

High-resolution CCTV cameras typically require higher memory for storage, which dramatically cuts down on the duration of the footage that can be recorded and stored. Although this may seem like a disadvantage, high-resolution CCTV cameras record images with better quality and clarity.

Another key factor to consider in terms of video quality is bitrate. Bitrate refers to how fast data is transferred or processed. It is affected by resolution, image compression, and the number of FPS (frames per second) taken. It is especially important for IP CCTV cameras. A CCTV camera that records at 96Kbps, for example, can record footage for a longer duration than a camera that uses 2Mbps.

Number of CCTV Cameras

cctv monitor

High-resolution CCTV cameras typically require higher memory for storage, which dramatically cuts down on the duration of the footage that can be recorded and stored.

A few cameras are capable of recording and storing footage for longer periods or duration. More cameras that are added to the system will reduce the duration of the recording. Select Security are experts at choosing, installing and troubleshooting security systems, and can help you to choose the best system for your budget and your needs.

Which System is Right For You?

When choosing CCTV cameras, it is important to determine these factors to maximize security and efficiency. The size of the area to be monitored, the type of security surveillance required, and the level of security needed should all be considered.